Duplicating means



July 16, 1940. H. JAGGER DUPLI CATING MEANS Filed July l5. 1959 5Sheets-Sheet l INVENTOR, Haben? T7@ agef" BY (L4/Jam.; c 1f-91nd@ATTORNEYS.

July 16, 1940.

sheets-sheet 2 'O mi CM1/@wf Wam ATTORNEYS.

July 16, 1940. v H. JAGGER v 2,207,922

DUPLICATING MEANS Filed July l5, 1939 3 Sheets-Sheetl 5 ff L fh-JINVENTO.

Kober?? rfa ef BY d. aww, @wam ATTORNEYS.

Patented July 1.6, 1940 PATENTv orrice g DUPLICATING MEANS HubertJagger, Maywood, Ill., assignor to Ditto, Incorporated, Chicago, Ill., acorporation of fest Virginia Application July 15, 1939, Serial No.284,597

13 claims.

This invention relates to duplicating machines of the flat bedhectograph type in which a carriage is movable longitudinally of aduplicating pad mounted on the bed of the machine so as to carry a copysheet or card into the desired position with respect to the duplicatingpad and to press it into effective engagement with the pad so as toprint a line of copy subject matter on the sheet. Itis the object of theinvention to mk provide an improved formand arrangement of means forpresenting a card into operative position on the duplicating padarranged so that the card is introduced into printing position andpressed againsty the' pad and then stripped from the pad without unduedeformation of the card from its normal straight condition.

In the arrangement shown in the drawings, the card moves along a traywhich is pivotally mounted on a horizontal axis and is brought into m.adjusted position thereon by contact with a margin bar device. A platenroller then moves downwardly into engagement with the card so as topress it against the edge of the tray which moves downwardly ahead ofthe roller against the aetion of supporting spring means, this beingeifected without any substantial bending of the card from its normalstraight condition. After the card has been gripped between the rollerand the tray, the margin bar means is withdrawn and the card is pressedn rrnly against the duplieating pad by the platen roller, the tray beingmoved downwardly to a slight extent at the end of the downward stroke ofthe roller so as to relieve the pressure between the tray and theroller. The arrangement is such that upon the upward movement of thetray and the roller the card is pulled upwardly by said means so as tostrip it from the duplicating pad ready for removal from the machine. y

It is another object of this invention to improve duplicating machinesof this type in sundry details hereinafter pointed out. means by whichthe several objects have been accomplished' are illustrated in thedrawings, in

which- Fig. l is a side view of a complete machine embodying theinvention, such machine being supported upon a cabinet;

Fig. 2 is a top plan view of the machine shown in Fig. 1;

Fig. 3 is a vertical cross sectional view taken substantially at theline 3 3 of Fig. 2;

Figs. 4 and 5 are substantially the same as Fig. 3 .but showing changedpositions of the parts;

and

The preferredv Fig, 6 is a perspective view` of the pivotally mountedtray upon which the copy sheet is introduced into the machine.

Referring now to the several figures of the drawings, in whichcorresponding parts are indicated by the same reference characters, IE!indicates a frame of any approved type provided With a bed plate IIextending thereacross having a gelatin duplicating band l2 securedthereon in any suitable manner. As is clearly shown in m Fig. 1, acarriage I3 is mounted upon the frame I0 soas to be movablelongitudinally thereof, the carriage I3 in the arrangement showncomprising a mounting bar I4 in the form of a yoke, the cross barportion of which is slidable along slots 15 I 5 provided by theframework IB at opposite sides of the machine. v t

In the arrangement shown, a platen roller i6 of any approved type isprovided for pressing a copy sheet into engagement with the duplicat- 20ing pad I2. In the arrangement shown, the platen roller I6 is rotatablymounted between two arms II which are xedly mounted upon a shaft I8rotatably mounted between the end walls of the carriage I3. A lever orarm I9 is 25 iixedly mounted on the shaft I8 at any suitable point alongsaid shaft for giving the shaft I8 a rocking movement for carrying thearm Il and the platen roller I6 toward and from the duplicating pad I2..Each of the arms Il in the ar- 30- rangement shown is provided with adownwardly extending lug 20 directly below the shaft I8 in which a pin2| is mounted, each of such pins being connected by a coiled spring 2lwith a pin 2.2 extending from the end Wall of the carriage for holdingthe arm or lever I9 swung normally to the limit of its movement incounterclockwise direction as shown in Figs. 1 and 3 so as to hold theplaten roller IE in its uppermost position.

At the face of the carriage at the right as shown in Fig. 5, a shaft 23is mounted' pivotally supporting a tray 24 in the form of a flat platewhich extends normally into position underneath the` platen roller I6,as shown in Fig. 3. Coiled springs 25 are provided connecting the plateor tray 24 with the framework above the tray, serving normally to holdthe tray in its raised position, as shown in said Fig. 3. For limitingthe upward movement of the tray 2li, stop means 50 in the form of ahorizontally disposed plate 26 is provided directly above the tray 24 insuch position as to cause lugs 2l carried by the tray 2li to engage forholding the tray in downwardly spaoed relation to the plate so as topermit free 55;

movement of a sheet of paper between the tray 24 and the plate 26. Inthe arrangement shown, the plate 26 is provided with a series of sightopenings 28 therealong for enabling the operator better to observe thecopy sheet in position upon the tray 24.

Adjacent to the tray 24, a stationary table or tray 29 is providedadapted to cooperate with the tray 24 for holding a card or other copysheet 30 in position as shown in Figs. 3, 4 and 5. In the arrangementshown, a margin bar device 3i is provided upon the stationary tray 29(see Fig. 2), such margin bar device comprising a vertically disposedplate portion 32 against which one edge of the card or other copy sheet3U is adapted to be positioned. The device 3| is held adjustably inposition by means of a spring 33, as is best shown in Fig. 2.

Margin bar means is provided adjacent to the platen roller I6 forcontrolling the position of a card or other copy sheet upon the traymembers 24 and 23. In the arrangement shown, such margin bar meanscomprises an angle bar 34 formed of sheet metal extending across betweentwo arms 35 pivotally mounted on the carriage I3. Above the arms 35,there are mounted plungers 36 which are pressed downwardly by coiledsprings 31, as is clearly shown in Fig. 3, the arrangement being suchthat the plungers 36 by engagement with the upper ends of the arms 35serve normally to hold the arms swung toward the roller I6 forsupporting the margin bar device 3 in position underneath the roller andserve alternatively when the arms are swung away lfrom the roller asshown in Fig. 5 to apply pressure for holding the arms and the marginbar device in such changed position.

For moving the arms 35 and the margin bar device 34 toward the left fromthe position as shown in Fig. 3 to the position as shown in Fig. 5 whenthe lever I9 is given a movement in clockwise direction in said figure,links 38 are provided connected at one end with the pins 2| andconnected at their opposite ends with the arms 35. As is clearly shownin Fig. 5, the connection between the links 38 and the arms 35 iseffected by means of slots 39 in the links engaging pins 40 carried bythe arms 35 so that there is a lost motion connection between the parts.

With the parts in the position as shown in Fig. 3, a card or other copysheet 30 is slid into position upon the tray 24 until its edge isbrought into contact with the margin bar device 34 for accuratelypositioning the copy sheet upon the tray. The arm or lever I9 is thenswung in clockwise direction in Fig. 3 for carrying the platen roller I6downwardly into engagement with the copy sheet 33 so as to press it rmlyagainst the edge of the tray 24. As the arm I9 is thereafter movedclockwise the tray 24 and the card 30 are moved downwardly together bythe platen roller I6until the copy sheet 30 is brought into impressionrelationship with the duplicating pad I2. Inasmuch as the roller I6 isfree to rotate with respect to the arms I'I, the card 30 is heldstrongly in position with respect to the tray 24 without any substantialtendency for the card to slip either with respect to the tray or withrespect to the roller. When the arms I1 reach substantially theirlowermost position as shown in Fig. 5, the arms are brought intoengagement with lugs 4I formed on the free edge of the tray 24 atopposite ends thereof, serving to move the tray downwardly to a veryslight extent with respect to the roller I6 for relieving ment of theroller I6 and the tray 24 together an upward pull is exerted on the cardor other copy sheet 30 by the tray and the roller for stripping the copysheet from the duplicating pad.

By the use of this improved construction in which the supporting meansfor the copy sheet is movable downwardly with the platen roller, thecopy sheet is protected against any undue deformation, being kept insubstantially its normal flat condition without abrupt bends at anypoint.V In cases where the copy sheets are in the form of stiff cards,this feature is of very substantial importance in enabling the cards tobe kep-t in good condition.

While the form and arrangement as shown and described are preferred, itis to be understood that the invention is not to be limited to such formand arrangement except so far as the claims may be so limited, it beingunderstood that changes might well be made in the constructionillustrated without departing from the spirit of the invention.

I claim:

1. In a flat bed duplicating machine of the hectograph type, thecombination of a frame comprising a bed plate, means for holding aduplicating pad in position on said bed, a carriage movable along saidbed, a member movable vertically on said carriage toward and fromsaidbed, means for directing a copy sheet into position above saidvertically movable member,

yielding means adapted normally to move said` vertically movable memberin the direction away from the bed, and a platen roller movablevertically on said carriage adapted upon a downward stroke to press acopy sheet into engagement with said vertically movable member and tomove the copy sheet and the vertically movable member togetherdownwardly for bringing the copy sheet into impression relationship withsaid duplicating pad.

2. In a flat bed duplicating machine of the hectograph type, thecombination of a frame.

comprising a bed plate, means for holding a duplicating pad in positionon said bed, a carriage movable along said bed, a member in the form ofa plate extending substantially horizontally on said carriage andmovable vertically` thereon, means for directing a copy sheet intoposition above said vertically movable member,

yielding means adapted normally to press said 3. In a flat bedduplicating machine of thehectograph type, the combination of a framecomprising a bed plate, means for holding a duplicating pad in positionon said bed, a carriage movable along said bed, a tray pivotally mountedon a horizontal transverse axis on said carriage adapted to receiveacopy sheet in position thereon above the duplicating pad, yielding meansadapted normally to hold said tray inl raisedposition, and a platenroller movable verticallyA onsaid carriage adapted-upon `a downwardstroke to press said 4copy sheet against the edge of the tray and tomove .the copy sheet and the tray downwardly-together for bridging thecopy sheet into pressure relationship with said duplicating pad. l i

4. In a flat bed duplicating machine of the hectograph type, thecombination of a frame comprising a bed plate, means'for holding aduplicating pad in position on said bed, a carriage movable along saidbed, a member movable vertically on said carriage toward and from saidbed, means for directing a copy sheet into position above saidvertically movable member, yielding means adapted'v normally tomove-said veri tically movable member in the direction away from thebed, and a platen roller movable vertically on said carriage adaptedupon a downward stroke to press a copy sheetl into engagement with saidvertically movable member and to move the copy sheet and the verticallymovable member downwardly together for bringing the copy sheet intoimpression relationship with said duplicating pad and adaptedupon thesucceeding upward stroke to cooperate withlsaid vertically movablemember for applying an upward pull on said copy'sheet for stripping itfrom the duplicating pad. y

5. In a flat bed duplicating machine vof thel 35 hectograph type. thecombination oi a frame comprising a bed plate. means for holding aduplicating pad in position on said bed,l a carri'age movable along saidbed, a tray pivotally mounted on a horizontal'transverse agis on saidcarriage adapted toreceive a copy sheet in position thereon above theduplicating pad, yielding means adapted normally toyhold said tray inraised position, and a platen roller -movablevertically on said carriageadaptedy upon a downward stroke to press said copy sheet Aagainst theedge of the tray and to move the `copy sheet and the tray downwardlytogether forbringing the copy sheet, into pressure relationship withsaid duplicating pad and adapted upon the next succeeding upward stroketo cooperate with said tray for applying an upward pull on said copysheet for stripping the sheet from the duplicatine pad,

6. In a flat bed duplicatingv machine of the hectograph type, thecombination of a frame comprising a bed plate, means `for holding aduplicating pad in positionon said bed, a carriage movable along saidbed, a member movable vertically on said carriage toward and from saidbed, means for directing a copy sheet into position above saidvertically movable member, yielding means adapted normally to move saidvertically movable member in the direction away from the bed. a platenroller movable vertically on said carriage adapted upon a downwardstroke to' press a copy sheet into engagement with said verticallymovable member and to move the copy sheet and the vertically movablemember downwardly together for bringing the copy sheet into impressionrelationship with saidl duplicating pad, and means for giving saidplaten roller reciprocatory movements vertically adapted when saidroller reaches its lowermost position to hold said vertically movablemember out of engagement with said roller.

'7. In a nat bed duplicating machine of the hectograph type, the,combinationoi a` frame comprising a bed plate, means' for holding aduplicating padin position on said bed, a carriage movable along saidbed',` a tray pivotally mounted on a horizontal transverse axis on saidcarriage adapted to receive a copy sheet in position thereon above theduplicating pad, yielding means adapted normally to hold said tray inraised position, two arms pivotally mounted on' said carriage-sol as toextend toward said tray, a platen roller rotatably mounted between saidarms so as to be movable vertically adapted upon a downward stroketopress a copy sheet inposition onsa'id tray against the edge of thetray and to move the copy sheet and the tray down,- wardly together forbringing the copy sheet into pressure relationship with said duplicatingpad, means for swinging lsaid arms vertically, and means on said trayadapted by engagement with said arms at about the time when `said rollerreaches its lowermost position to move the. tray downwardly to a slightextent for' relieving the l pressure of the tray against the roller.

'8. In a 'ilat bed duplicating machine of the hectograph type, thecombination' of a'vframe comprising a bed plate, means for holding aduplicating pad in position on said, bed, a carriage movable alo-ng saidbed, a tray pivotally mounted on a horizontal transverse axis on saidcarriage adapted `to receive a copy sheet in position thereon above theduplicating'fp'ad, yielding f means adapted normally to hold said traylin raised position, a plate in substantially horizon-v tal positionabove said tray, means for limiting the upward movement of the tray soas to hold it in spaced relation to said plate for permitting a copysheet to be slid into position on the tray,

- and a platen roller movable vertically on said carriage adapted uponaldownward stro-ke to press said copy sheet against the edge'of the trayand to move the copy sheet and the tray downwardly together` forbringing the copy sheet into `pres-y riage movable along said bed, amemberrnovable vertically on said Acarriage toward and from said bed,means for directing a copy sheet into posi-v tion abovelsaid verticallymovable member, yielding means adapted normally to move said verticallymovable member in the direction awayl from the bed, a margin bary deviceadapted normally to engage a copy sheet for positioning the sheet onsaid vertically movable member, a platenv roller movable vertically onsaid carriage adapted upon a downward stroke to vpress a copy`r sheetinto engagement with said vertically movable member and'to move the copysheet and the vertically movable member downwardly together for bringingthe copy sheet into impression relationship with said duplicating pad,and means Cil movable member in the direction away fromthe bed, a marginbar device adapted normally toengage a copy sheet for positioning thesheet on said vertically movable member, a platen roller movablevertically on said carriage adapted. upon a downward stroke to press acopy sheet into engagement with said vertically movable member and tomove the copy sheet and the vertically movable member downwardlytogether for bringing the copy sheet into impression relationship withsaid duplicating pad, means adapted upon a downward stroke of saidplaten roller to give said margin bar device a movement away from saidroller, and means comprising a spring adapted when the margin bar deviceis in operative position to apply pressure for holding said margin bardevice in such operative position and adapted when the margin bar deviceis moved out of operative position to apply pressure for holding it inits changed inoperative positio-n.

11. In a flat bed duplicating machine of the hectograph type, thecombination of a frame comprising a bed plate, means for holding aduplicating pad in position von said bed, a carriage movable along saidbed, a member movable vertically on said carriage toward andV from saidbed, means for directing a copy sheet into position above said'vertically movable member, yielding means adapted normally to move saidvertically movable miember in the direction away from the bed, armspivotally mounted on the carriage at opposite ends thereof so as toswing forwardly and backwardly on the carriage, a margin bar devicemounted on said arms a short distance above the duplicating pad, aplaten roller mov- ,able vertically on said carriage adapted upon a andto move the copy sheet and the vertically movable member downwardlytogether for bringing the copy sheet-into impression relationship withsaid duplicating pad, spring means acting upon the arms upon which saidmargin bar device is mounted adapted when the margin bar device is swungtoward the platen roller to apply pressure for holding the margin bardevice in such position and adapted when the margin bar device is swungaway from the platen roller to apply pressure for holding it in suchchanged position, and means adapted upon a downward stroke oi saidplaten roller to swing lsaid arms and said margin bar device away fromsaid roller.

12. In a flat bed` duplicating machine of the hectograph type, thecombination of a frame comprising a bed plate, means for holding aduplicating pad in position on said bed, a carriage movable along saidbed, a member movable vertically on said carriage toward and from saidbed, means for directing a copy sheet into position above saidvertically movable member, yielding with said duplicating pad, twocoiled springs .15 v

mounted on said carriage directly above said arms adapted by pressure onthe ends of said arms to hold the arms yield-ingly in'either theiroperative position swung toward theplaten` roller or. in theirinoperative position swung away from the platen roller, and meansadapted upon the downward stroke of said platen roller to give saidmargin bar device a movement away from said roller.

13. In a flat bed duplicating machine ofv the.

hectograph type, the combination of a frame comprising a bed plate,means for holding a duplicating pad in position onl said bed, acarriagel movable along said bed, a member movable vertically on saidcarriage toward and from said bed, means for directing a copy sheet intoposition above said vertically vmovable member, yielding means adaptednormally to move said vertically movable member in the direction awayfrom` the bed, arms pivotally mounted on the carriage at opposite endsthereof so as to swing' forwardly and backwardly on the carriage, amargin bar device mounted on said arms a short distance above theduplicating pad, a platen roller movable vertically on said carriageadapted upona downward stroke to press a copy sheet into engagement withsaid vertically movable member and to move the copy sheet and thevertically movable member downwardly together for bringing the copysheet into impression relationship with said duplicating pad, twokcoiled springs mounted on said carriage directly above said arms adaptedby pressure on the ends of said arms to hold the arms yieldingly ineither their operative position swung toward the platen roller or intheir inoperative position swung away from the platen roller, a leverpivotally mounted on said carriage adapted upon a stroke in one direc--tion to move said platen roller downwardly toward the duplicating pad,and links pivotally connected with said lever and having a lost motionconnection with said arms adapted when thev roller is moved downwardlyto swing said arms. and said margin bar device away from the roller..

HUBERT JAofGER..

